Features:A full-size keyboard and mouse designed for comfortable controlFull-size layoutType comfortably with all the room you need. The keys are where you expect them to be.Logitech Incurve KeysGlide from key-to-key for hours with Logitech® Incurve Keys™. Whisper-quiet, contour-edge, concave keys position your fingers properly.Hand-friendly full-size mouseContoured sides and soft rubber grips keep your hand comfortable, supported, and in control. You’ll enjoy smooth, precise tracking on virtually any surface.*Batteries without hassleA battery life of up to three years for the keyboard and eighteen months for the mouse practically eliminates the need to replace batteries.*Logitech® Unifying receiverThe tiny wireless receiver stays in your laptop and connects both the keyboard and mouse.Advanced 2.4 GHz wirelessWork and play in more places—like your comfy couch. Long-range wireless connection virtually eliminates delays, drops, and interference.Instant media accessOne-touch media controls let you mute your computer or skip to the next song instantly.Adjustable tilt legsExtend the folding legs to increase the keyboard tilt to 8 degrees.Easy keyboard storageStore your keyboard standing up to make space on your desk.A full-size keyboard and mouse designed for comfortable controlSystem RequirementsWindows-based PCWindows® XP, Windows Vista®, or Windows® 7, Windows® 8USB portInternet connectionPart NumberPN 920-002553Warranty Information3-year limited hardware warrantyPackage ContentsWireless Keyboard K520Wireless Mouse M310Logitech Unifying receiver3 AA alkaline batteries (pre-installed)User documentation